4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
32 /* Needed early for CONFIG_BSD etc. */
33 #include "config-host.h"
36 #include <sys/times.h>
40 #include <sys/ioctl.h>
41 #include <sys/resource.h>
42 #include <sys/socket.h>
43 #include <netinet/in.h>
46 #include <net/if_tap.h>
49 #include <linux/if_tun.h>
51 #include <arpa/inet.h>
54 #include <sys/select.h>
57 #if defined(__FreeBSD__) || defined(__DragonFly__)
62 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
63 #include <freebsd/stdlib.h>
68 #include <linux/rtc.h>
70 /* For the benefit of older linux systems which don't supply it,
71 we use a local copy of hpet.h. */
72 /* #include <linux/hpet.h> */
75 #include <linux/ppdev.h>
76 #include <linux/parport.h>
80 #include <sys/ethernet.h>
81 #include <sys/sockio.h>
82 #include <netinet/arp.h>
83 #include <netinet/in.h>
84 #include <netinet/in_systm.h>
85 #include <netinet/ip.h>
86 #include <netinet/ip_icmp.h> // must come after ip.h
87 #include <netinet/udp.h>
88 #include <netinet/tcp.h>
96 #if defined(__OpenBSD__)
100 #if defined(CONFIG_VDE)
101 #include <libvdeplug.h>
104 #include "qemu-common.h"
108 #include "qemu-timer.h"
109 #include "qemu-char.h"
110 #include "audio/audio.h"
111 #include "qemu_socket.h"
112 #include "qemu-log.h"
114 #include "slirp/libslirp.h"
117 static VLANState
*first_vlan
;
119 /***********************************************************/
120 /* network device redirectors */
122 #if defined(DEBUG_NET) || defined(DEBUG_SLIRP)
123 static void hex_dump(FILE *f
, const uint8_t *buf
, int size
)
127 for(i
=0;i
<size
;i
+=16) {
131 fprintf(f
, "%08x ", i
);
134 fprintf(f
, " %02x", buf
[i
+j
]);
141 if (c
< ' ' || c
> '~')
150 static int parse_macaddr(uint8_t *macaddr
, const char *p
)
157 offset
= strtol(p
, &last_char
, 0);
158 if (0 == errno
&& '\0' == *last_char
&&
159 offset
>= 0 && offset
<= 0xFFFFFF) {
160 macaddr
[3] = (offset
& 0xFF0000) >> 16;
161 macaddr
[4] = (offset
& 0xFF00) >> 8;
162 macaddr
[5] = offset
& 0xFF;
165 for(i
= 0; i
< 6; i
++) {
166 macaddr
[i
] = strtol(p
, (char **)&p
, 16);
171 if (*p
!= ':' && *p
!= '-')
182 static int get_str_sep(char *buf
, int buf_size
, const char **pp
, int sep
)
193 if (len
> buf_size
- 1)
202 int parse_host_src_port(struct sockaddr_in
*haddr
,
203 struct sockaddr_in
*saddr
,
204 const char *input_str
)
206 char *str
= strdup(input_str
);
207 char *host_str
= str
;
209 const char *src_str2
;
213 * Chop off any extra arguments at the end of the string which
214 * would start with a comma, then fill in the src port information
215 * if it was provided else use the "any address" and "any port".
217 if ((ptr
= strchr(str
,',')))
220 if ((src_str
= strchr(input_str
,'@'))) {
225 if (parse_host_port(haddr
, host_str
) < 0)
229 if (!src_str
|| *src_str
== '\0')
232 if (parse_host_port(saddr
, src_str2
) < 0)
243 int parse_host_port(struct sockaddr_in
*saddr
, const char *str
)
251 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0)
253 saddr
->sin_family
= AF_INET
;
254 if (buf
[0] == '\0') {
255 saddr
->sin_addr
.s_addr
= 0;
257 if (qemu_isdigit(buf
[0])) {
258 if (!inet_aton(buf
, &saddr
->sin_addr
))
261 if ((he
= gethostbyname(buf
)) == NULL
)
263 saddr
->sin_addr
= *(struct in_addr
*)he
->h_addr
;
266 port
= strtol(p
, (char **)&r
, 0);
269 saddr
->sin_port
= htons(port
);
273 void qemu_format_nic_info_str(VLANClientState
*vc
, uint8_t macaddr
[6])
275 snprintf(vc
->info_str
, sizeof(vc
->info_str
),
276 "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
278 macaddr
[0], macaddr
[1], macaddr
[2],
279 macaddr
[3], macaddr
[4], macaddr
[5]);
282 static char *assign_name(VLANClientState
*vc1
, const char *model
)
288 for (vlan
= first_vlan
; vlan
; vlan
= vlan
->next
) {
291 for (vc
= vlan
->first_client
; vc
; vc
= vc
->next
)
292 if (vc
!= vc1
&& strcmp(vc
->model
, model
) == 0)
296 snprintf(buf
, sizeof(buf
), "%s.%d", model
, id
);
301 VLANClientState
*qemu_new_vlan_client(VLANState
*vlan
,
304 NetCanReceive
*can_receive
,
306 NetReceiveIOV
*receive_iov
,
310 VLANClientState
*vc
, **pvc
;
311 vc
= qemu_mallocz(sizeof(VLANClientState
));
312 vc
->model
= strdup(model
);
314 vc
->name
= strdup(name
);
316 vc
->name
= assign_name(vc
, model
);
317 vc
->can_receive
= can_receive
;
318 vc
->receive
= receive
;
319 vc
->receive_iov
= receive_iov
;
320 vc
->cleanup
= cleanup
;
325 pvc
= &vlan
->first_client
;
332 void qemu_del_vlan_client(VLANClientState
*vc
)
334 VLANClientState
**pvc
= &vc
->vlan
->first_client
;
350 VLANClientState
*qemu_find_vlan_client(VLANState
*vlan
, void *opaque
)
352 VLANClientState
**pvc
= &vlan
->first_client
;
355 if ((*pvc
)->opaque
== opaque
)
363 static VLANClientState
*
364 qemu_find_vlan_client_by_name(Monitor
*mon
, int vlan_id
,
365 const char *client_str
)
370 vlan
= qemu_find_vlan(vlan_id
, 0);
372 monitor_printf(mon
, "unknown VLAN %d\n", vlan_id
);
376 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
377 if (!strcmp(vc
->name
, client_str
)) {
382 monitor_printf(mon
, "can't find device %s on VLAN %d\n",
383 client_str
, vlan_id
);
389 int qemu_can_send_packet(VLANClientState
*sender
)
391 VLANState
*vlan
= sender
->vlan
;
394 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
399 /* no can_receive() handler, they can always receive */
400 if (!vc
->can_receive
|| vc
->can_receive(vc
)) {
408 qemu_deliver_packet(VLANClientState
*sender
, const uint8_t *buf
, int size
)
413 sender
->vlan
->delivering
= 1;
415 for (vc
= sender
->vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
427 len
= vc
->receive(vc
, buf
, size
);
429 ret
= (ret
>= 0) ? ret
: len
;
432 sender
->vlan
->delivering
= 0;
437 void qemu_purge_queued_packets(VLANClientState
*vc
)
439 VLANPacket
*packet
, *next
;
441 TAILQ_FOREACH_SAFE(packet
, &vc
->vlan
->send_queue
, entry
, next
) {
442 if (packet
->sender
== vc
) {
443 TAILQ_REMOVE(&vc
->vlan
->send_queue
, packet
, entry
);
449 void qemu_flush_queued_packets(VLANClientState
*vc
)
451 while (!TAILQ_EMPTY(&vc
->vlan
->send_queue
)) {
455 packet
= TAILQ_FIRST(&vc
->vlan
->send_queue
);
456 TAILQ_REMOVE(&vc
->vlan
->send_queue
, packet
, entry
);
458 ret
= qemu_deliver_packet(packet
->sender
, packet
->data
, packet
->size
);
459 if (ret
== 0 && packet
->sent_cb
!= NULL
) {
460 TAILQ_INSERT_HEAD(&vc
->vlan
->send_queue
, packet
, entry
);
465 packet
->sent_cb(packet
->sender
, ret
);
471 static void qemu_enqueue_packet(VLANClientState
*sender
,
472 const uint8_t *buf
, int size
,
473 NetPacketSent
*sent_cb
)
477 packet
= qemu_malloc(sizeof(VLANPacket
) + size
);
478 packet
->sender
= sender
;
480 packet
->sent_cb
= sent_cb
;
481 memcpy(packet
->data
, buf
, size
);
483 TAILQ_INSERT_TAIL(&sender
->vlan
->send_queue
, packet
, entry
);
486 ssize_t
qemu_send_packet_async(VLANClientState
*sender
,
487 const uint8_t *buf
, int size
,
488 NetPacketSent
*sent_cb
)
492 if (sender
->link_down
) {
497 printf("vlan %d send:\n", sender
->vlan
->id
);
498 hex_dump(stdout
, buf
, size
);
501 if (sender
->vlan
->delivering
) {
502 qemu_enqueue_packet(sender
, buf
, size
, NULL
);
506 ret
= qemu_deliver_packet(sender
, buf
, size
);
507 if (ret
== 0 && sent_cb
!= NULL
) {
508 qemu_enqueue_packet(sender
, buf
, size
, sent_cb
);
512 qemu_flush_queued_packets(sender
);
517 void qemu_send_packet(VLANClientState
*vc
, const uint8_t *buf
, int size
)
519 qemu_send_packet_async(vc
, buf
, size
, NULL
);
522 static ssize_t
vc_sendv_compat(VLANClientState
*vc
, const struct iovec
*iov
,
525 uint8_t buffer
[4096];
529 for (i
= 0; i
< iovcnt
; i
++) {
532 len
= MIN(sizeof(buffer
) - offset
, iov
[i
].iov_len
);
533 memcpy(buffer
+ offset
, iov
[i
].iov_base
, len
);
537 return vc
->receive(vc
, buffer
, offset
);
540 static ssize_t
calc_iov_length(const struct iovec
*iov
, int iovcnt
)
545 for (i
= 0; i
< iovcnt
; i
++)
546 offset
+= iov
[i
].iov_len
;
550 static int qemu_deliver_packet_iov(VLANClientState
*sender
,
551 const struct iovec
*iov
, int iovcnt
)
556 sender
->vlan
->delivering
= 1;
558 for (vc
= sender
->vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
) {
566 ret
= calc_iov_length(iov
, iovcnt
);
570 if (vc
->receive_iov
) {
571 len
= vc
->receive_iov(vc
, iov
, iovcnt
);
573 len
= vc_sendv_compat(vc
, iov
, iovcnt
);
576 ret
= (ret
>= 0) ? ret
: len
;
579 sender
->vlan
->delivering
= 0;
584 static ssize_t
qemu_enqueue_packet_iov(VLANClientState
*sender
,
585 const struct iovec
*iov
, int iovcnt
,
586 NetPacketSent
*sent_cb
)
592 max_len
= calc_iov_length(iov
, iovcnt
);
594 packet
= qemu_malloc(sizeof(VLANPacket
) + max_len
);
595 packet
->sender
= sender
;
596 packet
->sent_cb
= sent_cb
;
599 for (i
= 0; i
< iovcnt
; i
++) {
600 size_t len
= iov
[i
].iov_len
;
602 memcpy(packet
->data
+ packet
->size
, iov
[i
].iov_base
, len
);
606 TAILQ_INSERT_TAIL(&sender
->vlan
->send_queue
, packet
, entry
);
611 ssize_t
qemu_sendv_packet_async(VLANClientState
*sender
,
612 const struct iovec
*iov
, int iovcnt
,
613 NetPacketSent
*sent_cb
)
617 if (sender
->link_down
) {
618 return calc_iov_length(iov
, iovcnt
);
621 if (sender
->vlan
->delivering
) {
622 return qemu_enqueue_packet_iov(sender
, iov
, iovcnt
, NULL
);
625 ret
= qemu_deliver_packet_iov(sender
, iov
, iovcnt
);
626 if (ret
== 0 && sent_cb
!= NULL
) {
627 qemu_enqueue_packet_iov(sender
, iov
, iovcnt
, sent_cb
);
631 qemu_flush_queued_packets(sender
);
637 qemu_sendv_packet(VLANClientState
*vc
, const struct iovec
*iov
, int iovcnt
)
639 return qemu_sendv_packet_async(vc
, iov
, iovcnt
, NULL
);
642 static void config_error(Monitor
*mon
, const char *fmt
, ...)
648 monitor_vprintf(mon
, fmt
, ap
);
650 fprintf(stderr
, "qemu: ");
651 vfprintf(stderr
, fmt
, ap
);
657 #if defined(CONFIG_SLIRP)
659 /* slirp network adapter */
661 #define SLIRP_CFG_HOSTFWD 1
662 #define SLIRP_CFG_LEGACY 2
664 struct slirp_config_str
{
665 struct slirp_config_str
*next
;
671 typedef struct SlirpState
{
672 TAILQ_ENTRY(SlirpState
) entry
;
680 static struct slirp_config_str
*slirp_configs
;
681 const char *legacy_tftp_prefix
;
682 const char *legacy_bootp_filename
;
683 static TAILQ_HEAD(slirp_stacks
, SlirpState
) slirp_stacks
=
684 TAILQ_HEAD_INITIALIZER(slirp_stacks
);
686 static void slirp_hostfwd(SlirpState
*s
, Monitor
*mon
, const char *redir_str
,
688 static void slirp_guestfwd(SlirpState
*s
, Monitor
*mon
, const char *config_str
,
692 static const char *legacy_smb_export
;
694 static void slirp_smb(SlirpState
*s
, Monitor
*mon
, const char *exported_dir
,
695 struct in_addr vserver_addr
);
696 static void slirp_smb_cleanup(SlirpState
*s
);
698 static inline void slirp_smb_cleanup(SlirpState
*s
) { }
701 int slirp_can_output(void *opaque
)
703 SlirpState
*s
= opaque
;
705 return qemu_can_send_packet(s
->vc
);
708 void slirp_output(void *opaque
, const uint8_t *pkt
, int pkt_len
)
710 SlirpState
*s
= opaque
;
713 printf("slirp output:\n");
714 hex_dump(stdout
, pkt
, pkt_len
);
716 qemu_send_packet(s
->vc
, pkt
, pkt_len
);
719 static ssize_t
slirp_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
721 SlirpState
*s
= vc
->opaque
;
724 printf("slirp input:\n");
725 hex_dump(stdout
, buf
, size
);
727 slirp_input(s
->slirp
, buf
, size
);
731 static void net_slirp_cleanup(VLANClientState
*vc
)
733 SlirpState
*s
= vc
->opaque
;
735 slirp_cleanup(s
->slirp
);
736 slirp_smb_cleanup(s
);
737 TAILQ_REMOVE(&slirp_stacks
, s
, entry
);
741 static int net_slirp_init(Monitor
*mon
, VLANState
*vlan
, const char *model
,
742 const char *name
, int restricted
,
743 const char *vnetwork
, const char *vhost
,
744 const char *vhostname
, const char *tftp_export
,
745 const char *bootfile
, const char *vdhcp_start
,
746 const char *vnameserver
, const char *smb_export
,
747 const char *vsmbserver
)
749 /* default settings according to historic slirp */
750 struct in_addr net
= { .s_addr
= htonl(0x0a000200) }; /* 10.0.2.0 */
751 struct in_addr mask
= { .s_addr
= htonl(0xffffff00) }; /* 255.255.255.0 */
752 struct in_addr host
= { .s_addr
= htonl(0x0a000202) }; /* 10.0.2.2 */
753 struct in_addr dhcp
= { .s_addr
= htonl(0x0a00020f) }; /* 10.0.2.15 */
754 struct in_addr dns
= { .s_addr
= htonl(0x0a000203) }; /* 10.0.2.3 */
756 struct in_addr smbsrv
= { .s_addr
= 0 };
765 tftp_export
= legacy_tftp_prefix
;
768 bootfile
= legacy_bootp_filename
;
772 if (get_str_sep(buf
, sizeof(buf
), &vnetwork
, '/') < 0) {
773 if (!inet_aton(vnetwork
, &net
)) {
776 addr
= ntohl(net
.s_addr
);
777 if (!(addr
& 0x80000000)) {
778 mask
.s_addr
= htonl(0xff000000); /* class A */
779 } else if ((addr
& 0xfff00000) == 0xac100000) {
780 mask
.s_addr
= htonl(0xfff00000); /* priv. 172.16.0.0/12 */
781 } else if ((addr
& 0xc0000000) == 0x80000000) {
782 mask
.s_addr
= htonl(0xffff0000); /* class B */
783 } else if ((addr
& 0xffff0000) == 0xc0a80000) {
784 mask
.s_addr
= htonl(0xffff0000); /* priv. 192.168.0.0/16 */
785 } else if ((addr
& 0xffff0000) == 0xc6120000) {
786 mask
.s_addr
= htonl(0xfffe0000); /* tests 198.18.0.0/15 */
787 } else if ((addr
& 0xe0000000) == 0xe0000000) {
788 mask
.s_addr
= htonl(0xffffff00); /* class C */
790 mask
.s_addr
= htonl(0xfffffff0); /* multicast/reserved */
793 if (!inet_aton(buf
, &net
)) {
796 shift
= strtol(vnetwork
, &end
, 10);
798 if (!inet_aton(vnetwork
, &mask
)) {
801 } else if (shift
< 4 || shift
> 32) {
804 mask
.s_addr
= htonl(0xffffffff << (32 - shift
));
807 net
.s_addr
&= mask
.s_addr
;
808 host
.s_addr
= net
.s_addr
| (htonl(0x0202) & ~mask
.s_addr
);
809 dhcp
.s_addr
= net
.s_addr
| (htonl(0x020f) & ~mask
.s_addr
);
810 dns
.s_addr
= net
.s_addr
| (htonl(0x0203) & ~mask
.s_addr
);
813 if (vhost
&& !inet_aton(vhost
, &host
)) {
816 if ((host
.s_addr
& mask
.s_addr
) != net
.s_addr
) {
820 if (vdhcp_start
&& !inet_aton(vdhcp_start
, &dhcp
)) {
823 if ((dhcp
.s_addr
& mask
.s_addr
) != net
.s_addr
||
824 dhcp
.s_addr
== host
.s_addr
|| dhcp
.s_addr
== dns
.s_addr
) {
828 if (vnameserver
&& !inet_aton(vnameserver
, &dns
)) {
831 if ((dns
.s_addr
& mask
.s_addr
) != net
.s_addr
||
832 dns
.s_addr
== host
.s_addr
) {
837 if (vsmbserver
&& !inet_aton(vsmbserver
, &smbsrv
)) {
842 s
= qemu_mallocz(sizeof(SlirpState
));
843 s
->slirp
= slirp_init(restricted
, net
, mask
, host
, vhostname
,
844 tftp_export
, bootfile
, dhcp
, dns
, s
);
845 TAILQ_INSERT_TAIL(&slirp_stacks
, s
, entry
);
847 while (slirp_configs
) {
848 struct slirp_config_str
*config
= slirp_configs
;
850 if (config
->flags
& SLIRP_CFG_HOSTFWD
) {
851 slirp_hostfwd(s
, mon
, config
->str
,
852 config
->flags
& SLIRP_CFG_LEGACY
);
854 slirp_guestfwd(s
, mon
, config
->str
,
855 config
->flags
& SLIRP_CFG_LEGACY
);
857 slirp_configs
= config
->next
;
862 smb_export
= legacy_smb_export
;
865 slirp_smb(s
, mon
, smb_export
, smbsrv
);
869 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, slirp_receive
, NULL
,
870 net_slirp_cleanup
, s
);
871 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
872 "net=%s, restricted=%c", inet_ntoa(net
), restricted
? 'y' : 'n');
876 static SlirpState
*slirp_lookup(Monitor
*mon
, const char *vlan
,
882 vc
= qemu_find_vlan_client_by_name(mon
, strtol(vlan
, NULL
, 0), stack
);
886 if (strcmp(vc
->model
, "user")) {
887 monitor_printf(mon
, "invalid device specified\n");
892 if (TAILQ_EMPTY(&slirp_stacks
)) {
893 monitor_printf(mon
, "user mode network stack not in use\n");
896 return TAILQ_FIRST(&slirp_stacks
);
900 void net_slirp_hostfwd_remove(Monitor
*mon
, const char *arg1
,
901 const char *arg2
, const char *arg3
)
903 struct in_addr host_addr
= { .s_addr
= INADDR_ANY
};
906 const char *src_str
, *p
;
912 s
= slirp_lookup(mon
, arg1
, arg2
);
915 s
= slirp_lookup(mon
, NULL
, NULL
);
922 if (!src_str
|| !src_str
[0])
926 get_str_sep(buf
, sizeof(buf
), &p
, ':');
928 if (!strcmp(buf
, "tcp") || buf
[0] == '\0') {
930 } else if (!strcmp(buf
, "udp")) {
936 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
939 if (buf
[0] != '\0' && !inet_aton(buf
, &host_addr
)) {
945 err
= slirp_remove_hostfwd(TAILQ_FIRST(&slirp_stacks
)->slirp
, is_udp
,
946 host_addr
, host_port
);
948 monitor_printf(mon
, "host forwarding rule for %s %s\n", src_str
,
949 err
? "removed" : "not found");
953 monitor_printf(mon
, "invalid format\n");
956 static void slirp_hostfwd(SlirpState
*s
, Monitor
*mon
, const char *redir_str
,
959 struct in_addr host_addr
= { .s_addr
= INADDR_ANY
};
960 struct in_addr guest_addr
= { .s_addr
= 0 };
961 int host_port
, guest_port
;
968 if (!p
|| get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
971 if (!strcmp(buf
, "tcp") || buf
[0] == '\0') {
973 } else if (!strcmp(buf
, "udp")) {
979 if (!legacy_format
) {
980 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
983 if (buf
[0] != '\0' && !inet_aton(buf
, &host_addr
)) {
988 if (get_str_sep(buf
, sizeof(buf
), &p
, legacy_format
? ':' : '-') < 0) {
991 host_port
= strtol(buf
, &end
, 0);
992 if (*end
!= '\0' || host_port
< 1 || host_port
> 65535) {
996 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
999 if (buf
[0] != '\0' && !inet_aton(buf
, &guest_addr
)) {
1003 guest_port
= strtol(p
, &end
, 0);
1004 if (*end
!= '\0' || guest_port
< 1 || guest_port
> 65535) {
1008 if (slirp_add_hostfwd(s
->slirp
, is_udp
, host_addr
, host_port
, guest_addr
,
1010 config_error(mon
, "could not set up host forwarding rule '%s'\n",
1016 config_error(mon
, "invalid host forwarding rule '%s'\n", redir_str
);
1019 void net_slirp_hostfwd_add(Monitor
*mon
, const char *arg1
,
1020 const char *arg2
, const char *arg3
)
1022 const char *redir_str
;
1026 s
= slirp_lookup(mon
, arg1
, arg2
);
1029 s
= slirp_lookup(mon
, NULL
, NULL
);
1033 slirp_hostfwd(s
, mon
, redir_str
, 0);
1038 void net_slirp_redir(const char *redir_str
)
1040 struct slirp_config_str
*config
;
1042 if (TAILQ_EMPTY(&slirp_stacks
)) {
1043 config
= qemu_malloc(sizeof(*config
));
1044 pstrcpy(config
->str
, sizeof(config
->str
), redir_str
);
1045 config
->flags
= SLIRP_CFG_HOSTFWD
| SLIRP_CFG_LEGACY
;
1046 config
->next
= slirp_configs
;
1047 slirp_configs
= config
;
1051 slirp_hostfwd(TAILQ_FIRST(&slirp_stacks
), NULL
, redir_str
, 1);
1056 /* automatic user mode samba server configuration */
1057 static void slirp_smb_cleanup(SlirpState
*s
)
1061 if (s
->smb_dir
[0] != '\0') {
1062 snprintf(cmd
, sizeof(cmd
), "rm -rf %s", s
->smb_dir
);
1064 s
->smb_dir
[0] = '\0';
1068 static void slirp_smb(SlirpState
* s
, Monitor
*mon
, const char *exported_dir
,
1069 struct in_addr vserver_addr
)
1071 static int instance
;
1073 char smb_cmdline
[128];
1076 snprintf(s
->smb_dir
, sizeof(s
->smb_dir
), "/tmp/qemu-smb.%ld-%d",
1077 (long)getpid(), instance
++);
1078 if (mkdir(s
->smb_dir
, 0700) < 0) {
1079 config_error(mon
, "could not create samba server dir '%s'\n",
1083 snprintf(smb_conf
, sizeof(smb_conf
), "%s/%s", s
->smb_dir
, "smb.conf");
1085 f
= fopen(smb_conf
, "w");
1087 slirp_smb_cleanup(s
);
1088 config_error(mon
, "could not create samba server "
1089 "configuration file '%s'\n", smb_conf
);
1096 "socket address=127.0.0.1\n"
1097 "pid directory=%s\n"
1098 "lock directory=%s\n"
1099 "log file=%s/log.smbd\n"
1100 "smb passwd file=%s/smbpasswd\n"
1101 "security = share\n"
1115 snprintf(smb_cmdline
, sizeof(smb_cmdline
), "%s -s %s",
1116 SMBD_COMMAND
, smb_conf
);
1118 if (slirp_add_exec(s
->slirp
, 0, smb_cmdline
, &vserver_addr
, 139) < 0) {
1119 slirp_smb_cleanup(s
);
1120 config_error(mon
, "conflicting/invalid smbserver address\n");
1124 /* automatic user mode samba server configuration (legacy interface) */
1125 void net_slirp_smb(const char *exported_dir
)
1127 struct in_addr vserver_addr
= { .s_addr
= 0 };
1129 if (legacy_smb_export
) {
1130 fprintf(stderr
, "-smb given twice\n");
1133 legacy_smb_export
= exported_dir
;
1134 if (!TAILQ_EMPTY(&slirp_stacks
)) {
1135 slirp_smb(TAILQ_FIRST(&slirp_stacks
), NULL
, exported_dir
,
1140 #endif /* !defined(_WIN32) */
1143 CharDriverState
*hd
;
1144 struct in_addr server
;
1149 static int guestfwd_can_read(void *opaque
)
1151 struct GuestFwd
*fwd
= opaque
;
1152 return slirp_socket_can_recv(fwd
->slirp
, fwd
->server
, fwd
->port
);
1155 static void guestfwd_read(void *opaque
, const uint8_t *buf
, int size
)
1157 struct GuestFwd
*fwd
= opaque
;
1158 slirp_socket_recv(fwd
->slirp
, fwd
->server
, fwd
->port
, buf
, size
);
1161 static void slirp_guestfwd(SlirpState
*s
, Monitor
*mon
, const char *config_str
,
1164 struct in_addr server
= { .s_addr
= 0 };
1165 struct GuestFwd
*fwd
;
1172 if (legacy_format
) {
1173 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
1177 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
1180 if (strcmp(buf
, "tcp") && buf
[0] != '\0') {
1183 if (get_str_sep(buf
, sizeof(buf
), &p
, ':') < 0) {
1186 if (buf
[0] != '\0' && !inet_aton(buf
, &server
)) {
1189 if (get_str_sep(buf
, sizeof(buf
), &p
, '-') < 0) {
1193 port
= strtol(buf
, &end
, 10);
1194 if (*end
!= '\0' || port
< 1 || port
> 65535) {
1198 fwd
= qemu_malloc(sizeof(struct GuestFwd
));
1199 snprintf(buf
, sizeof(buf
), "guestfwd.tcp:%d", port
);
1200 fwd
->hd
= qemu_chr_open(buf
, p
, NULL
);
1202 config_error(mon
, "could not open guest forwarding device '%s'\n",
1208 if (slirp_add_exec(s
->slirp
, 3, fwd
->hd
, &server
, port
) < 0) {
1209 config_error(mon
, "conflicting/invalid host:port in guest forwarding "
1210 "rule '%s'\n", config_str
);
1214 fwd
->server
= server
;
1216 fwd
->slirp
= s
->slirp
;
1218 qemu_chr_add_handlers(fwd
->hd
, guestfwd_can_read
, guestfwd_read
,
1223 config_error(mon
, "invalid guest forwarding rule '%s'\n", config_str
);
1226 void do_info_usernet(Monitor
*mon
)
1230 TAILQ_FOREACH(s
, &slirp_stacks
, entry
) {
1231 monitor_printf(mon
, "VLAN %d (%s):\n", s
->vc
->vlan
->id
, s
->vc
->name
);
1232 slirp_connection_info(s
->slirp
, mon
);
1236 #endif /* CONFIG_SLIRP */
1238 #if !defined(_WIN32)
1240 typedef struct TAPState
{
1241 VLANClientState
*vc
;
1243 char down_script
[1024];
1244 char down_script_arg
[128];
1246 unsigned int read_poll
: 1;
1247 unsigned int write_poll
: 1;
1250 static int launch_script(const char *setup_script
, const char *ifname
, int fd
);
1252 static int tap_can_send(void *opaque
);
1253 static void tap_send(void *opaque
);
1254 static void tap_writable(void *opaque
);
1256 static void tap_update_fd_handler(TAPState
*s
)
1258 qemu_set_fd_handler2(s
->fd
,
1259 s
->read_poll
? tap_can_send
: NULL
,
1260 s
->read_poll
? tap_send
: NULL
,
1261 s
->write_poll
? tap_writable
: NULL
,
1265 static void tap_read_poll(TAPState
*s
, int enable
)
1267 s
->read_poll
= !!enable
;
1268 tap_update_fd_handler(s
);
1271 static void tap_write_poll(TAPState
*s
, int enable
)
1273 s
->write_poll
= !!enable
;
1274 tap_update_fd_handler(s
);
1277 static void tap_writable(void *opaque
)
1279 TAPState
*s
= opaque
;
1281 tap_write_poll(s
, 0);
1283 qemu_flush_queued_packets(s
->vc
);
1286 static ssize_t
tap_receive_iov(VLANClientState
*vc
, const struct iovec
*iov
,
1289 TAPState
*s
= vc
->opaque
;
1293 len
= writev(s
->fd
, iov
, iovcnt
);
1294 } while (len
== -1 && errno
== EINTR
);
1296 if (len
== -1 && errno
== EAGAIN
) {
1297 tap_write_poll(s
, 1);
1304 static ssize_t
tap_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1306 TAPState
*s
= vc
->opaque
;
1310 len
= write(s
->fd
, buf
, size
);
1311 } while (len
== -1 && (errno
== EINTR
|| errno
== EAGAIN
));
1316 static int tap_can_send(void *opaque
)
1318 TAPState
*s
= opaque
;
1320 return qemu_can_send_packet(s
->vc
);
1324 static ssize_t
tap_read_packet(int tapfd
, uint8_t *buf
, int maxlen
)
1329 sbuf
.maxlen
= maxlen
;
1330 sbuf
.buf
= (char *)buf
;
1332 return getmsg(tapfd
, NULL
, &sbuf
, &f
) >= 0 ? sbuf
.len
: -1;
1335 static ssize_t
tap_read_packet(int tapfd
, uint8_t *buf
, int maxlen
)
1337 return read(tapfd
, buf
, maxlen
);
1341 static void tap_send_completed(VLANClientState
*vc
, ssize_t len
)
1343 TAPState
*s
= vc
->opaque
;
1344 tap_read_poll(s
, 1);
1347 static void tap_send(void *opaque
)
1349 TAPState
*s
= opaque
;
1353 size
= tap_read_packet(s
->fd
, s
->buf
, sizeof(s
->buf
));
1358 size
= qemu_send_packet_async(s
->vc
, s
->buf
, size
, tap_send_completed
);
1360 tap_read_poll(s
, 0);
1366 /* sndbuf should be set to a value lower than the tx queue
1367 * capacity of any destination network interface.
1368 * Ethernet NICs generally have txqueuelen=1000, so 1Mb is
1369 * a good default, given a 1500 byte MTU.
1371 #define TAP_DEFAULT_SNDBUF 1024*1024
1373 static void tap_set_sndbuf(TAPState
*s
, const char *sndbuf_str
, Monitor
*mon
)
1375 int sndbuf
= TAP_DEFAULT_SNDBUF
;
1378 sndbuf
= atoi(sndbuf_str
);
1385 if (ioctl(s
->fd
, TUNSETSNDBUF
, &sndbuf
) == -1 && sndbuf_str
) {
1386 config_error(mon
, "TUNSETSNDBUF ioctl failed: %s\n",
1391 static void tap_set_sndbuf(TAPState
*s
, const char *sndbuf_str
, Monitor
*mon
)
1394 config_error(mon
, "No '-net tap,sndbuf=<nbytes>' support available\n");
1397 #endif /* TUNSETSNDBUF */
1399 static void tap_cleanup(VLANClientState
*vc
)
1401 TAPState
*s
= vc
->opaque
;
1403 qemu_purge_queued_packets(vc
);
1405 if (s
->down_script
[0])
1406 launch_script(s
->down_script
, s
->down_script_arg
, s
->fd
);
1408 tap_read_poll(s
, 0);
1409 tap_write_poll(s
, 0);
1416 static TAPState
*net_tap_fd_init(VLANState
*vlan
,
1423 s
= qemu_mallocz(sizeof(TAPState
));
1425 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, tap_receive
,
1426 tap_receive_iov
, tap_cleanup
, s
);
1427 tap_read_poll(s
, 1);
1428 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
), "fd=%d", fd
);
1432 #if defined (CONFIG_BSD) || defined (__FreeBSD_kernel__)
1433 static int tap_open(char *ifname
, int ifname_size
)
1439 TFR(fd
= open("/dev/tap", O_RDWR
));
1441 fprintf(stderr
, "warning: could not open /dev/tap: no virtual network emulation\n");
1446 dev
= devname(s
.st_rdev
, S_IFCHR
);
1447 pstrcpy(ifname
, ifname_size
, dev
);
1449 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1452 #elif defined(__sun__)
1453 #define TUNNEWPPA (('T'<<16) | 0x0001)
1455 * Allocate TAP device, returns opened fd.
1456 * Stores dev name in the first arg(must be large enough).
1458 static int tap_alloc(char *dev
, size_t dev_size
)
1460 int tap_fd
, if_fd
, ppa
= -1;
1461 static int ip_fd
= 0;
1464 static int arp_fd
= 0;
1465 int ip_muxid
, arp_muxid
;
1466 struct strioctl strioc_if
, strioc_ppa
;
1467 int link_type
= I_PLINK
;;
1469 char actual_name
[32] = "";
1471 memset(&ifr
, 0x0, sizeof(ifr
));
1475 while( *ptr
&& !qemu_isdigit((int)*ptr
) ) ptr
++;
1479 /* Check if IP device was opened */
1483 TFR(ip_fd
= open("/dev/udp", O_RDWR
, 0));
1485 syslog(LOG_ERR
, "Can't open /dev/ip (actually /dev/udp)");
1489 TFR(tap_fd
= open("/dev/tap", O_RDWR
, 0));
1491 syslog(LOG_ERR
, "Can't open /dev/tap");
1495 /* Assign a new PPA and get its unit number. */
1496 strioc_ppa
.ic_cmd
= TUNNEWPPA
;
1497 strioc_ppa
.ic_timout
= 0;
1498 strioc_ppa
.ic_len
= sizeof(ppa
);
1499 strioc_ppa
.ic_dp
= (char *)&ppa
;
1500 if ((ppa
= ioctl (tap_fd
, I_STR
, &strioc_ppa
)) < 0)
1501 syslog (LOG_ERR
, "Can't assign new interface");
1503 TFR(if_fd
= open("/dev/tap", O_RDWR
, 0));
1505 syslog(LOG_ERR
, "Can't open /dev/tap (2)");
1508 if(ioctl(if_fd
, I_PUSH
, "ip") < 0){
1509 syslog(LOG_ERR
, "Can't push IP module");
1513 if (ioctl(if_fd
, SIOCGLIFFLAGS
, &ifr
) < 0)
1514 syslog(LOG_ERR
, "Can't get flags\n");
1516 snprintf (actual_name
, 32, "tap%d", ppa
);
1517 pstrcpy(ifr
.lifr_name
, sizeof(ifr
.lifr_name
), actual_name
);
1520 /* Assign ppa according to the unit number returned by tun device */
1522 if (ioctl (if_fd
, SIOCSLIFNAME
, &ifr
) < 0)
1523 syslog (LOG_ERR
, "Can't set PPA %d", ppa
);
1524 if (ioctl(if_fd
, SIOCGLIFFLAGS
, &ifr
) <0)
1525 syslog (LOG_ERR
, "Can't get flags\n");
1526 /* Push arp module to if_fd */
1527 if (ioctl (if_fd
, I_PUSH
, "arp") < 0)
1528 syslog (LOG_ERR
, "Can't push ARP module (2)");
1530 /* Push arp module to ip_fd */
1531 if (ioctl (ip_fd
, I_POP
, NULL
) < 0)
1532 syslog (LOG_ERR
, "I_POP failed\n");
1533 if (ioctl (ip_fd
, I_PUSH
, "arp") < 0)
1534 syslog (LOG_ERR
, "Can't push ARP module (3)\n");
1536 TFR(arp_fd
= open ("/dev/tap", O_RDWR
, 0));
1538 syslog (LOG_ERR
, "Can't open %s\n", "/dev/tap");
1540 /* Set ifname to arp */
1541 strioc_if
.ic_cmd
= SIOCSLIFNAME
;
1542 strioc_if
.ic_timout
= 0;
1543 strioc_if
.ic_len
= sizeof(ifr
);
1544 strioc_if
.ic_dp
= (char *)&ifr
;
1545 if (ioctl(arp_fd
, I_STR
, &strioc_if
) < 0){
1546 syslog (LOG_ERR
, "Can't set ifname to arp\n");
1549 if((ip_muxid
= ioctl(ip_fd
, I_LINK
, if_fd
)) < 0){
1550 syslog(LOG_ERR
, "Can't link TAP device to IP");
1554 if ((arp_muxid
= ioctl (ip_fd
, link_type
, arp_fd
)) < 0)
1555 syslog (LOG_ERR
, "Can't link TAP device to ARP");
1559 memset(&ifr
, 0x0, sizeof(ifr
));
1560 pstrcpy(ifr
.lifr_name
, sizeof(ifr
.lifr_name
), actual_name
);
1561 ifr
.lifr_ip_muxid
= ip_muxid
;
1562 ifr
.lifr_arp_muxid
= arp_muxid
;
1564 if (ioctl (ip_fd
, SIOCSLIFMUXID
, &ifr
) < 0)
1566 ioctl (ip_fd
, I_PUNLINK
, arp_muxid
);
1567 ioctl (ip_fd
, I_PUNLINK
, ip_muxid
);
1568 syslog (LOG_ERR
, "Can't set multiplexor id");
1571 snprintf(dev
, dev_size
, "tap%d", ppa
);
1575 static int tap_open(char *ifname
, int ifname_size
)
1579 if( (fd
= tap_alloc(dev
, sizeof(dev
))) < 0 ){
1580 fprintf(stderr
, "Cannot allocate TAP device\n");
1583 pstrcpy(ifname
, ifname_size
, dev
);
1584 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1587 #elif defined (_AIX)
1588 static int tap_open(char *ifname
, int ifname_size
)
1590 fprintf (stderr
, "no tap on AIX\n");
1594 static int tap_open(char *ifname
, int ifname_size
)
1599 TFR(fd
= open("/dev/net/tun", O_RDWR
));
1601 fprintf(stderr
, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1604 memset(&ifr
, 0, sizeof(ifr
));
1605 ifr
.ifr_flags
= IFF_TAP
| IFF_NO_PI
;
1606 if (ifname
[0] != '\0')
1607 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, ifname
);
1609 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, "tap%d");
1610 ret
= ioctl(fd
, TUNSETIFF
, (void *) &ifr
);
1612 fprintf(stderr
, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1616 pstrcpy(ifname
, ifname_size
, ifr
.ifr_name
);
1617 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1622 static int launch_script(const char *setup_script
, const char *ifname
, int fd
)
1624 sigset_t oldmask
, mask
;
1630 sigaddset(&mask
, SIGCHLD
);
1631 sigprocmask(SIG_BLOCK
, &mask
, &oldmask
);
1633 /* try to launch network script */
1636 int open_max
= sysconf(_SC_OPEN_MAX
), i
;
1638 for (i
= 0; i
< open_max
; i
++) {
1639 if (i
!= STDIN_FILENO
&&
1640 i
!= STDOUT_FILENO
&&
1641 i
!= STDERR_FILENO
&&
1647 *parg
++ = (char *)setup_script
;
1648 *parg
++ = (char *)ifname
;
1650 execv(setup_script
, args
);
1652 } else if (pid
> 0) {
1653 while (waitpid(pid
, &status
, 0) != pid
) {
1656 sigprocmask(SIG_SETMASK
, &oldmask
, NULL
);
1658 if (WIFEXITED(status
) && WEXITSTATUS(status
) == 0) {
1662 fprintf(stderr
, "%s: could not launch network script\n", setup_script
);
1666 static TAPState
*net_tap_init(VLANState
*vlan
, const char *model
,
1667 const char *name
, const char *ifname1
,
1668 const char *setup_script
, const char *down_script
)
1674 if (ifname1
!= NULL
)
1675 pstrcpy(ifname
, sizeof(ifname
), ifname1
);
1678 TFR(fd
= tap_open(ifname
, sizeof(ifname
)));
1682 if (!setup_script
|| !strcmp(setup_script
, "no"))
1684 if (setup_script
[0] != '\0' &&
1685 launch_script(setup_script
, ifname
, fd
)) {
1688 s
= net_tap_fd_init(vlan
, model
, name
, fd
);
1689 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
1690 "ifname=%s,script=%s,downscript=%s",
1691 ifname
, setup_script
, down_script
);
1692 if (down_script
&& strcmp(down_script
, "no")) {
1693 snprintf(s
->down_script
, sizeof(s
->down_script
), "%s", down_script
);
1694 snprintf(s
->down_script_arg
, sizeof(s
->down_script_arg
), "%s", ifname
);
1699 #endif /* !_WIN32 */
1701 #if defined(CONFIG_VDE)
1702 typedef struct VDEState
{
1703 VLANClientState
*vc
;
1707 static void vde_to_qemu(void *opaque
)
1709 VDEState
*s
= opaque
;
1713 size
= vde_recv(s
->vde
, (char *)buf
, sizeof(buf
), 0);
1715 qemu_send_packet(s
->vc
, buf
, size
);
1719 static ssize_t
vde_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1721 VDEState
*s
= vc
->opaque
;
1725 ret
= vde_send(s
->vde
, (const char *)buf
, size
, 0);
1726 } while (ret
< 0 && errno
== EINTR
);
1731 static void vde_cleanup(VLANClientState
*vc
)
1733 VDEState
*s
= vc
->opaque
;
1734 qemu_set_fd_handler(vde_datafd(s
->vde
), NULL
, NULL
, NULL
);
1739 static int net_vde_init(VLANState
*vlan
, const char *model
,
1740 const char *name
, const char *sock
,
1741 int port
, const char *group
, int mode
)
1744 char *init_group
= strlen(group
) ? (char *)group
: NULL
;
1745 char *init_sock
= strlen(sock
) ? (char *)sock
: NULL
;
1747 struct vde_open_args args
= {
1749 .group
= init_group
,
1753 s
= qemu_mallocz(sizeof(VDEState
));
1754 s
->vde
= vde_open(init_sock
, (char *)"QEMU", &args
);
1759 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, vde_receive
,
1760 NULL
, vde_cleanup
, s
);
1761 qemu_set_fd_handler(vde_datafd(s
->vde
), vde_to_qemu
, NULL
, s
);
1762 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
), "sock=%s,fd=%d",
1763 sock
, vde_datafd(s
->vde
));
1768 /* network connection */
1769 typedef struct NetSocketState
{
1770 VLANClientState
*vc
;
1772 int state
; /* 0 = getting length, 1 = getting data */
1774 unsigned int packet_len
;
1776 struct sockaddr_in dgram_dst
; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
1779 typedef struct NetSocketListenState
{
1784 } NetSocketListenState
;
1786 /* XXX: we consider we can send the whole packet without blocking */
1787 static ssize_t
net_socket_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1789 NetSocketState
*s
= vc
->opaque
;
1793 send_all(s
->fd
, (const uint8_t *)&len
, sizeof(len
));
1794 return send_all(s
->fd
, buf
, size
);
1797 static ssize_t
net_socket_receive_dgram(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1799 NetSocketState
*s
= vc
->opaque
;
1801 return sendto(s
->fd
, (const void *)buf
, size
, 0,
1802 (struct sockaddr
*)&s
->dgram_dst
, sizeof(s
->dgram_dst
));
1805 static void net_socket_send(void *opaque
)
1807 NetSocketState
*s
= opaque
;
1813 size
= recv(s
->fd
, (void *)buf1
, sizeof(buf1
), 0);
1815 err
= socket_error();
1816 if (err
!= EWOULDBLOCK
)
1818 } else if (size
== 0) {
1819 /* end of connection */
1821 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1827 /* reassemble a packet from the network */
1833 memcpy(s
->buf
+ s
->index
, buf
, l
);
1837 if (s
->index
== 4) {
1839 s
->packet_len
= ntohl(*(uint32_t *)s
->buf
);
1845 l
= s
->packet_len
- s
->index
;
1848 if (s
->index
+ l
<= sizeof(s
->buf
)) {
1849 memcpy(s
->buf
+ s
->index
, buf
, l
);
1851 fprintf(stderr
, "serious error: oversized packet received,"
1852 "connection terminated.\n");
1860 if (s
->index
>= s
->packet_len
) {
1861 qemu_send_packet(s
->vc
, s
->buf
, s
->packet_len
);
1870 static void net_socket_send_dgram(void *opaque
)
1872 NetSocketState
*s
= opaque
;
1875 size
= recv(s
->fd
, (void *)s
->buf
, sizeof(s
->buf
), 0);
1879 /* end of connection */
1880 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1883 qemu_send_packet(s
->vc
, s
->buf
, size
);
1886 static int net_socket_mcast_create(struct sockaddr_in
*mcastaddr
)
1891 if (!IN_MULTICAST(ntohl(mcastaddr
->sin_addr
.s_addr
))) {
1892 fprintf(stderr
, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
1893 inet_ntoa(mcastaddr
->sin_addr
),
1894 (int)ntohl(mcastaddr
->sin_addr
.s_addr
));
1898 fd
= socket(PF_INET
, SOCK_DGRAM
, 0);
1900 perror("socket(PF_INET, SOCK_DGRAM)");
1905 ret
=setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
,
1906 (const char *)&val
, sizeof(val
));
1908 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
1912 ret
= bind(fd
, (struct sockaddr
*)mcastaddr
, sizeof(*mcastaddr
));
1918 /* Add host to multicast group */
1919 imr
.imr_multiaddr
= mcastaddr
->sin_addr
;
1920 imr
.imr_interface
.s_addr
= htonl(INADDR_ANY
);
1922 ret
= setsockopt(fd
, IPPROTO_IP
, IP_ADD_MEMBERSHIP
,
1923 (const char *)&imr
, sizeof(struct ip_mreq
));
1925 perror("setsockopt(IP_ADD_MEMBERSHIP)");
1929 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
1931 ret
=setsockopt(fd
, IPPROTO_IP
, IP_MULTICAST_LOOP
,
1932 (const char *)&val
, sizeof(val
));
1934 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
1938 socket_set_nonblock(fd
);
1946 static void net_socket_cleanup(VLANClientState
*vc
)
1948 NetSocketState
*s
= vc
->opaque
;
1949 qemu_set_fd_handler(s
->fd
, NULL
, NULL
, NULL
);
1954 static NetSocketState
*net_socket_fd_init_dgram(VLANState
*vlan
,
1957 int fd
, int is_connected
)
1959 struct sockaddr_in saddr
;
1961 socklen_t saddr_len
;
1964 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
1965 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
1966 * by ONLY ONE process: we must "clone" this dgram socket --jjo
1970 if (getsockname(fd
, (struct sockaddr
*) &saddr
, &saddr_len
) == 0) {
1972 if (saddr
.sin_addr
.s_addr
==0) {
1973 fprintf(stderr
, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
1977 /* clone dgram socket */
1978 newfd
= net_socket_mcast_create(&saddr
);
1980 /* error already reported by net_socket_mcast_create() */
1984 /* clone newfd to fd, close newfd */
1989 fprintf(stderr
, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
1990 fd
, strerror(errno
));
1995 s
= qemu_mallocz(sizeof(NetSocketState
));
1998 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, net_socket_receive_dgram
,
1999 NULL
, net_socket_cleanup
, s
);
2000 qemu_set_fd_handler(s
->fd
, net_socket_send_dgram
, NULL
, s
);
2002 /* mcast: save bound address as dst */
2003 if (is_connected
) s
->dgram_dst
=saddr
;
2005 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2006 "socket: fd=%d (%s mcast=%s:%d)",
2007 fd
, is_connected
? "cloned" : "",
2008 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
2012 static void net_socket_connect(void *opaque
)
2014 NetSocketState
*s
= opaque
;
2015 qemu_set_fd_handler(s
->fd
, net_socket_send
, NULL
, s
);
2018 static NetSocketState
*net_socket_fd_init_stream(VLANState
*vlan
,
2021 int fd
, int is_connected
)
2024 s
= qemu_mallocz(sizeof(NetSocketState
));
2026 s
->vc
= qemu_new_vlan_client(vlan
, model
, name
, NULL
, net_socket_receive
,
2027 NULL
, net_socket_cleanup
, s
);
2028 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2029 "socket: fd=%d", fd
);
2031 net_socket_connect(s
);
2033 qemu_set_fd_handler(s
->fd
, NULL
, net_socket_connect
, s
);
2038 static NetSocketState
*net_socket_fd_init(VLANState
*vlan
,
2039 const char *model
, const char *name
,
2040 int fd
, int is_connected
)
2042 int so_type
=-1, optlen
=sizeof(so_type
);
2044 if(getsockopt(fd
, SOL_SOCKET
, SO_TYPE
, (char *)&so_type
,
2045 (socklen_t
*)&optlen
)< 0) {
2046 fprintf(stderr
, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd
);
2051 return net_socket_fd_init_dgram(vlan
, model
, name
, fd
, is_connected
);
2053 return net_socket_fd_init_stream(vlan
, model
, name
, fd
, is_connected
);
2055 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
2056 fprintf(stderr
, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type
, fd
);
2057 return net_socket_fd_init_stream(vlan
, model
, name
, fd
, is_connected
);
2062 static void net_socket_accept(void *opaque
)
2064 NetSocketListenState
*s
= opaque
;
2066 struct sockaddr_in saddr
;
2071 len
= sizeof(saddr
);
2072 fd
= accept(s
->fd
, (struct sockaddr
*)&saddr
, &len
);
2073 if (fd
< 0 && errno
!= EINTR
) {
2075 } else if (fd
>= 0) {
2079 s1
= net_socket_fd_init(s
->vlan
, s
->model
, s
->name
, fd
, 1);
2083 snprintf(s1
->vc
->info_str
, sizeof(s1
->vc
->info_str
),
2084 "socket: connection from %s:%d",
2085 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
2089 static int net_socket_listen_init(VLANState
*vlan
,
2092 const char *host_str
)
2094 NetSocketListenState
*s
;
2096 struct sockaddr_in saddr
;
2098 if (parse_host_port(&saddr
, host_str
) < 0)
2101 s
= qemu_mallocz(sizeof(NetSocketListenState
));
2103 fd
= socket(PF_INET
, SOCK_STREAM
, 0);
2108 socket_set_nonblock(fd
);
2110 /* allow fast reuse */
2112 setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
, (const char *)&val
, sizeof(val
));
2114 ret
= bind(fd
, (struct sockaddr
*)&saddr
, sizeof(saddr
));
2119 ret
= listen(fd
, 0);
2125 s
->model
= strdup(model
);
2126 s
->name
= name
? strdup(name
) : NULL
;
2128 qemu_set_fd_handler(fd
, net_socket_accept
, NULL
, s
);
2132 static int net_socket_connect_init(VLANState
*vlan
,
2135 const char *host_str
)
2138 int fd
, connected
, ret
, err
;
2139 struct sockaddr_in saddr
;
2141 if (parse_host_port(&saddr
, host_str
) < 0)
2144 fd
= socket(PF_INET
, SOCK_STREAM
, 0);
2149 socket_set_nonblock(fd
);
2153 ret
= connect(fd
, (struct sockaddr
*)&saddr
, sizeof(saddr
));
2155 err
= socket_error();
2156 if (err
== EINTR
|| err
== EWOULDBLOCK
) {
2157 } else if (err
== EINPROGRESS
) {
2160 } else if (err
== WSAEALREADY
) {
2173 s
= net_socket_fd_init(vlan
, model
, name
, fd
, connected
);
2176 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2177 "socket: connect to %s:%d",
2178 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
2182 static int net_socket_mcast_init(VLANState
*vlan
,
2185 const char *host_str
)
2189 struct sockaddr_in saddr
;
2191 if (parse_host_port(&saddr
, host_str
) < 0)
2195 fd
= net_socket_mcast_create(&saddr
);
2199 s
= net_socket_fd_init(vlan
, model
, name
, fd
, 0);
2203 s
->dgram_dst
= saddr
;
2205 snprintf(s
->vc
->info_str
, sizeof(s
->vc
->info_str
),
2206 "socket: mcast=%s:%d",
2207 inet_ntoa(saddr
.sin_addr
), ntohs(saddr
.sin_port
));
2212 typedef struct DumpState
{
2213 VLANClientState
*pcap_vc
;
2218 #define PCAP_MAGIC 0xa1b2c3d4
2220 struct pcap_file_hdr
{
2222 uint16_t version_major
;
2223 uint16_t version_minor
;
2230 struct pcap_sf_pkthdr
{
2239 static ssize_t
dump_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
2241 DumpState
*s
= vc
->opaque
;
2242 struct pcap_sf_pkthdr hdr
;
2246 /* Early return in case of previous error. */
2251 ts
= muldiv64(qemu_get_clock(vm_clock
), 1000000, ticks_per_sec
);
2252 caplen
= size
> s
->pcap_caplen
? s
->pcap_caplen
: size
;
2254 hdr
.ts
.tv_sec
= ts
/ 1000000;
2255 hdr
.ts
.tv_usec
= ts
% 1000000;
2256 hdr
.caplen
= caplen
;
2258 if (write(s
->fd
, &hdr
, sizeof(hdr
)) != sizeof(hdr
) ||
2259 write(s
->fd
, buf
, caplen
) != caplen
) {
2260 qemu_log("-net dump write error - stop dump\n");
2268 static void net_dump_cleanup(VLANClientState
*vc
)
2270 DumpState
*s
= vc
->opaque
;
2276 static int net_dump_init(Monitor
*mon
, VLANState
*vlan
, const char *device
,
2277 const char *name
, const char *filename
, int len
)
2279 struct pcap_file_hdr hdr
;
2282 s
= qemu_malloc(sizeof(DumpState
));
2284 s
->fd
= open(filename
, O_CREAT
| O_WRONLY
| O_BINARY
, 0644);
2286 config_error(mon
, "-net dump: can't open %s\n", filename
);
2290 s
->pcap_caplen
= len
;
2292 hdr
.magic
= PCAP_MAGIC
;
2293 hdr
.version_major
= 2;
2294 hdr
.version_minor
= 4;
2297 hdr
.snaplen
= s
->pcap_caplen
;
2300 if (write(s
->fd
, &hdr
, sizeof(hdr
)) < sizeof(hdr
)) {
2301 config_error(mon
, "-net dump write error: %s\n", strerror(errno
));
2307 s
->pcap_vc
= qemu_new_vlan_client(vlan
, device
, name
, NULL
, dump_receive
, NULL
,
2308 net_dump_cleanup
, s
);
2309 snprintf(s
->pcap_vc
->info_str
, sizeof(s
->pcap_vc
->info_str
),
2310 "dump to %s (len=%d)", filename
, len
);
2314 /* find or alloc a new VLAN */
2315 VLANState
*qemu_find_vlan(int id
, int allocate
)
2317 VLANState
**pvlan
, *vlan
;
2318 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2325 vlan
= qemu_mallocz(sizeof(VLANState
));
2327 TAILQ_INIT(&vlan
->send_queue
);
2329 pvlan
= &first_vlan
;
2330 while (*pvlan
!= NULL
)
2331 pvlan
= &(*pvlan
)->next
;
2336 static int nic_get_free_idx(void)
2340 for (index
= 0; index
< MAX_NICS
; index
++)
2341 if (!nd_table
[index
].used
)
2346 void qemu_check_nic_model(NICInfo
*nd
, const char *model
)
2348 const char *models
[2];
2353 qemu_check_nic_model_list(nd
, models
, model
);
2356 void qemu_check_nic_model_list(NICInfo
*nd
, const char * const *models
,
2357 const char *default_model
)
2359 int i
, exit_status
= 0;
2362 nd
->model
= strdup(default_model
);
2364 if (strcmp(nd
->model
, "?") != 0) {
2365 for (i
= 0 ; models
[i
]; i
++)
2366 if (strcmp(nd
->model
, models
[i
]) == 0)
2369 fprintf(stderr
, "qemu: Unsupported NIC model: %s\n", nd
->model
);
2373 fprintf(stderr
, "qemu: Supported NIC models: ");
2374 for (i
= 0 ; models
[i
]; i
++)
2375 fprintf(stderr
, "%s%c", models
[i
], models
[i
+1] ? ',' : '\n');
2380 static int net_handle_fd_param(Monitor
*mon
, const char *param
)
2382 if (!qemu_isdigit(param
[0])) {
2385 fd
= monitor_get_fd(mon
, param
);
2387 config_error(mon
, "No file descriptor named %s found", param
);
2393 return strtol(param
, NULL
, 0);
2397 int net_client_init(Monitor
*mon
, const char *device
, const char *p
)
2405 if (get_param_value(buf
, sizeof(buf
), "vlan", p
)) {
2406 vlan_id
= strtol(buf
, NULL
, 0);
2408 vlan
= qemu_find_vlan(vlan_id
, 1);
2410 if (get_param_value(buf
, sizeof(buf
), "name", p
)) {
2411 name
= qemu_strdup(buf
);
2413 if (!strcmp(device
, "nic")) {
2414 static const char * const nic_params
[] = {
2415 "vlan", "name", "macaddr", "model", "addr", "id", "vectors", NULL
2419 int idx
= nic_get_free_idx();
2421 if (check_params(buf
, sizeof(buf
), nic_params
, p
) < 0) {
2422 config_error(mon
, "invalid parameter '%s' in '%s'\n", buf
, p
);
2426 if (idx
== -1 || nb_nics
>= MAX_NICS
) {
2427 config_error(mon
, "Too Many NICs\n");
2431 nd
= &nd_table
[idx
];
2432 macaddr
= nd
->macaddr
;
2438 macaddr
[5] = 0x56 + idx
;
2440 if (get_param_value(buf
, sizeof(buf
), "macaddr", p
)) {
2441 if (parse_macaddr(macaddr
, buf
) < 0) {
2442 config_error(mon
, "invalid syntax for ethernet address\n");
2447 if (get_param_value(buf
, sizeof(buf
), "model", p
)) {
2448 nd
->model
= strdup(buf
);
2450 if (get_param_value(buf
, sizeof(buf
), "addr", p
)) {
2451 nd
->devaddr
= strdup(buf
);
2453 if (get_param_value(buf
, sizeof(buf
), "id", p
)) {
2454 nd
->id
= strdup(buf
);
2456 nd
->nvectors
= NIC_NVECTORS_UNSPECIFIED
;
2457 if (get_param_value(buf
, sizeof(buf
), "vectors", p
)) {
2459 long vectors
= strtol(buf
, &endptr
, 0);
2461 config_error(mon
, "invalid syntax for # of vectors\n");
2465 if (vectors
< 0 || vectors
> 0x7ffffff) {
2466 config_error(mon
, "invalid # of vectors\n");
2470 nd
->nvectors
= vectors
;
2477 vlan
->nb_guest_devs
++;
2480 if (!strcmp(device
, "none")) {
2482 config_error(mon
, "'none' takes no parameters\n");
2486 /* does nothing. It is needed to signal that no network cards
2491 if (!strcmp(device
, "user")) {
2492 static const char * const slirp_params
[] = {
2493 "vlan", "name", "hostname", "restrict", "ip", "net", "host",
2494 "tftp", "bootfile", "dhcpstart", "dns", "smb", "smbserver",
2495 "hostfwd", "guestfwd", NULL
2497 struct slirp_config_str
*config
;
2501 char *vhostname
= NULL
;
2502 char *tftp_export
= NULL
;
2503 char *bootfile
= NULL
;
2504 char *vdhcp_start
= NULL
;
2505 char *vnamesrv
= NULL
;
2506 char *smb_export
= NULL
;
2507 char *vsmbsrv
= NULL
;
2510 if (check_params(buf
, sizeof(buf
), slirp_params
, p
) < 0) {
2511 config_error(mon
, "invalid parameter '%s' in '%s'\n", buf
, p
);
2515 if (get_param_value(buf
, sizeof(buf
), "ip", p
)) {
2516 int vnet_buflen
= strlen(buf
) + strlen("/24") + 1;
2517 /* emulate legacy parameter */
2518 vnet
= qemu_malloc(vnet_buflen
);
2519 pstrcpy(vnet
, vnet_buflen
, buf
);
2520 pstrcat(vnet
, vnet_buflen
, "/24");
2522 if (get_param_value(buf
, sizeof(buf
), "net", p
)) {
2523 vnet
= qemu_strdup(buf
);
2525 if (get_param_value(buf
, sizeof(buf
), "host", p
)) {
2526 vhost
= qemu_strdup(buf
);
2528 if (get_param_value(buf
, sizeof(buf
), "hostname", p
)) {
2529 vhostname
= qemu_strdup(buf
);
2531 if (get_param_value(buf
, sizeof(buf
), "restrict", p
)) {
2532 restricted
= (buf
[0] == 'y') ? 1 : 0;
2534 if (get_param_value(buf
, sizeof(buf
), "dhcpstart", p
)) {
2535 vdhcp_start
= qemu_strdup(buf
);
2537 if (get_param_value(buf
, sizeof(buf
), "dns", p
)) {
2538 vnamesrv
= qemu_strdup(buf
);
2540 if (get_param_value(buf
, sizeof(buf
), "tftp", p
)) {
2541 tftp_export
= qemu_strdup(buf
);
2543 if (get_param_value(buf
, sizeof(buf
), "bootfile", p
)) {
2544 bootfile
= qemu_strdup(buf
);
2546 if (get_param_value(buf
, sizeof(buf
), "smb", p
)) {
2547 smb_export
= qemu_strdup(buf
);
2548 if (get_param_value(buf
, sizeof(buf
), "smbserver", p
)) {
2549 vsmbsrv
= qemu_strdup(buf
);
2554 config
= qemu_malloc(sizeof(*config
));
2555 if (!get_next_param_value(config
->str
, sizeof(config
->str
),
2559 config
->flags
= SLIRP_CFG_HOSTFWD
;
2560 config
->next
= slirp_configs
;
2561 slirp_configs
= config
;
2566 config
= qemu_malloc(sizeof(*config
));
2567 if (!get_next_param_value(config
->str
, sizeof(config
->str
),
2572 config
->next
= slirp_configs
;
2573 slirp_configs
= config
;
2577 vlan
->nb_host_devs
++;
2578 ret
= net_slirp_init(mon
, vlan
, device
, name
, restricted
, vnet
, vhost
,
2579 vhostname
, tftp_export
, bootfile
, vdhcp_start
,
2580 vnamesrv
, smb_export
, vsmbsrv
);
2583 qemu_free(vhostname
);
2584 qemu_free(tftp_export
);
2585 qemu_free(bootfile
);
2586 qemu_free(vdhcp_start
);
2587 qemu_free(vnamesrv
);
2588 qemu_free(smb_export
);
2590 } else if (!strcmp(device
, "channel")) {
2591 if (TAILQ_EMPTY(&slirp_stacks
)) {
2592 struct slirp_config_str
*config
;
2594 config
= qemu_malloc(sizeof(*config
));
2595 pstrcpy(config
->str
, sizeof(config
->str
), p
);
2596 config
->flags
= SLIRP_CFG_LEGACY
;
2597 config
->next
= slirp_configs
;
2598 slirp_configs
= config
;
2600 slirp_guestfwd(TAILQ_FIRST(&slirp_stacks
), mon
, p
, 1);
2606 if (!strcmp(device
, "tap")) {
2607 static const char * const tap_params
[] = {
2608 "vlan", "name", "ifname", NULL
2612 if (check_params(buf
, sizeof(buf
), tap_params
, p
) < 0) {
2613 config_error(mon
, "invalid parameter '%s' in '%s'\n", buf
, p
);
2617 if (get_param_value(ifname
, sizeof(ifname
), "ifname", p
) <= 0) {
2618 config_error(mon
, "tap: no interface name\n");
2622 vlan
->nb_host_devs
++;
2623 ret
= tap_win32_init(vlan
, device
, name
, ifname
);
2625 #elif defined (_AIX)
2627 if (!strcmp(device
, "tap")) {
2628 char ifname
[64], chkbuf
[64];
2629 char setup_script
[1024], down_script
[1024];
2632 vlan
->nb_host_devs
++;
2633 if (get_param_value(buf
, sizeof(buf
), "fd", p
) > 0) {
2634 static const char * const fd_params
[] = {
2635 "vlan", "name", "fd", "sndbuf", NULL
2638 if (check_params(chkbuf
, sizeof(chkbuf
), fd_params
, p
) < 0) {
2639 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2642 fd
= net_handle_fd_param(mon
, buf
);
2646 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
2647 s
= net_tap_fd_init(vlan
, device
, name
, fd
);
2652 static const char * const tap_params
[] = {
2653 "vlan", "name", "ifname", "script", "downscript", "sndbuf", NULL
2655 if (check_params(chkbuf
, sizeof(chkbuf
), tap_params
, p
) < 0) {
2656 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2660 if (get_param_value(ifname
, sizeof(ifname
), "ifname", p
) <= 0) {
2663 if (get_param_value(setup_script
, sizeof(setup_script
), "script", p
) == 0) {
2664 pstrcpy(setup_script
, sizeof(setup_script
), DEFAULT_NETWORK_SCRIPT
);
2666 if (get_param_value(down_script
, sizeof(down_script
), "downscript", p
) == 0) {
2667 pstrcpy(down_script
, sizeof(down_script
), DEFAULT_NETWORK_DOWN_SCRIPT
);
2669 s
= net_tap_init(vlan
, device
, name
, ifname
, setup_script
, down_script
);
2672 const char *sndbuf_str
= NULL
;
2673 if (get_param_value(buf
, sizeof(buf
), "sndbuf", p
)) {
2676 tap_set_sndbuf(s
, sndbuf_str
, mon
);
2683 if (!strcmp(device
, "socket")) {
2685 if (get_param_value(buf
, sizeof(buf
), "fd", p
) > 0) {
2686 static const char * const fd_params
[] = {
2687 "vlan", "name", "fd", NULL
2691 if (check_params(chkbuf
, sizeof(chkbuf
), fd_params
, p
) < 0) {
2692 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2695 fd
= net_handle_fd_param(mon
, buf
);
2699 if (!net_socket_fd_init(vlan
, device
, name
, fd
, 1)) {
2704 } else if (get_param_value(buf
, sizeof(buf
), "listen", p
) > 0) {
2705 static const char * const listen_params
[] = {
2706 "vlan", "name", "listen", NULL
2708 if (check_params(chkbuf
, sizeof(chkbuf
), listen_params
, p
) < 0) {
2709 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2713 ret
= net_socket_listen_init(vlan
, device
, name
, buf
);
2714 } else if (get_param_value(buf
, sizeof(buf
), "connect", p
) > 0) {
2715 static const char * const connect_params
[] = {
2716 "vlan", "name", "connect", NULL
2718 if (check_params(chkbuf
, sizeof(chkbuf
), connect_params
, p
) < 0) {
2719 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2723 ret
= net_socket_connect_init(vlan
, device
, name
, buf
);
2724 } else if (get_param_value(buf
, sizeof(buf
), "mcast", p
) > 0) {
2725 static const char * const mcast_params
[] = {
2726 "vlan", "name", "mcast", NULL
2728 if (check_params(chkbuf
, sizeof(chkbuf
), mcast_params
, p
) < 0) {
2729 config_error(mon
, "invalid parameter '%s' in '%s'\n", chkbuf
, p
);
2733 ret
= net_socket_mcast_init(vlan
, device
, name
, buf
);
2735 config_error(mon
, "Unknown socket options: %s\n", p
);
2739 vlan
->nb_host_devs
++;
2742 if (!strcmp(device
, "vde")) {
2743 static const char * const vde_params
[] = {
2744 "vlan", "name", "sock", "port", "group", "mode", NULL
2746 char vde_sock
[1024], vde_group
[512];
2747 int vde_port
, vde_mode
;
2749 if (check_params(buf
, sizeof(buf
), vde_params
, p
) < 0) {
2750 config_error(mon
, "invalid parameter '%s' in '%s'\n", buf
, p
);
2754 vlan
->nb_host_devs
++;
2755 if (get_param_value(vde_sock
, sizeof(vde_sock
), "sock", p
) <= 0) {
2758 if (get_param_value(buf
, sizeof(buf
), "port", p
) > 0) {
2759 vde_port
= strtol(buf
, NULL
, 10);
2763 if (get_param_value(vde_group
, sizeof(vde_group
), "group", p
) <= 0) {
2764 vde_group
[0] = '\0';
2766 if (get_param_value(buf
, sizeof(buf
), "mode", p
) > 0) {
2767 vde_mode
= strtol(buf
, NULL
, 8);
2771 ret
= net_vde_init(vlan
, device
, name
, vde_sock
, vde_port
, vde_group
, vde_mode
);
2774 if (!strcmp(device
, "dump")) {
2777 if (get_param_value(buf
, sizeof(buf
), "len", p
) > 0) {
2778 len
= strtol(buf
, NULL
, 0);
2780 if (!get_param_value(buf
, sizeof(buf
), "file", p
)) {
2781 snprintf(buf
, sizeof(buf
), "qemu-vlan%d.pcap", vlan_id
);
2783 ret
= net_dump_init(mon
, vlan
, device
, name
, buf
, len
);
2785 config_error(mon
, "Unknown network device: %s\n", device
);
2790 config_error(mon
, "Could not initialize device '%s'\n", device
);
2797 void net_client_uninit(NICInfo
*nd
)
2799 nd
->vlan
->nb_guest_devs
--;
2802 free((void *)nd
->model
);
2805 static int net_host_check_device(const char *device
)
2808 const char *valid_param_list
[] = { "tap", "socket", "dump"
2816 for (i
= 0; i
< sizeof(valid_param_list
) / sizeof(char *); i
++) {
2817 if (!strncmp(valid_param_list
[i
], device
,
2818 strlen(valid_param_list
[i
])))
2825 void net_host_device_add(Monitor
*mon
, const char *device
, const char *opts
)
2827 if (!net_host_check_device(device
)) {
2828 monitor_printf(mon
, "invalid host network device %s\n", device
);
2831 if (net_client_init(mon
, device
, opts
? opts
: "") < 0) {
2832 monitor_printf(mon
, "adding host network device %s failed\n", device
);
2836 void net_host_device_remove(Monitor
*mon
, int vlan_id
, const char *device
)
2838 VLANClientState
*vc
;
2840 vc
= qemu_find_vlan_client_by_name(mon
, vlan_id
, device
);
2844 if (!net_host_check_device(vc
->model
)) {
2845 monitor_printf(mon
, "invalid host network device %s\n", device
);
2848 qemu_del_vlan_client(vc
);
2851 int net_client_parse(const char *str
)
2859 while (*p
!= '\0' && *p
!= ',') {
2860 if ((q
- device
) < sizeof(device
) - 1)
2868 return net_client_init(NULL
, device
, p
);
2871 void net_set_boot_mask(int net_boot_mask
)
2875 /* Only the first four NICs may be bootable */
2876 net_boot_mask
= net_boot_mask
& 0xF;
2878 for (i
= 0; i
< nb_nics
; i
++) {
2879 if (net_boot_mask
& (1 << i
)) {
2880 nd_table
[i
].bootable
= 1;
2881 net_boot_mask
&= ~(1 << i
);
2885 if (net_boot_mask
) {
2886 fprintf(stderr
, "Cannot boot from non-existent NIC\n");
2891 void do_info_network(Monitor
*mon
)
2894 VLANClientState
*vc
;
2896 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2897 monitor_printf(mon
, "VLAN %d devices:\n", vlan
->id
);
2898 for(vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
)
2899 monitor_printf(mon
, " %s: %s\n", vc
->name
, vc
->info_str
);
2903 void do_set_link(Monitor
*mon
, const char *name
, const char *up_or_down
)
2906 VLANClientState
*vc
= NULL
;
2908 for (vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
)
2909 for (vc
= vlan
->first_client
; vc
!= NULL
; vc
= vc
->next
)
2910 if (strcmp(vc
->name
, name
) == 0)
2915 monitor_printf(mon
, "could not find network device '%s'\n", name
);
2919 if (strcmp(up_or_down
, "up") == 0)
2921 else if (strcmp(up_or_down
, "down") == 0)
2924 monitor_printf(mon
, "invalid link status '%s'; only 'up' or 'down' "
2925 "valid\n", up_or_down
);
2927 if (vc
->link_status_changed
)
2928 vc
->link_status_changed(vc
);
2931 void net_cleanup(void)
2935 /* close network clients */
2936 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2937 VLANClientState
*vc
= vlan
->first_client
;
2940 VLANClientState
*next
= vc
->next
;
2942 qemu_del_vlan_client(vc
);
2949 void net_client_check(void)
2953 for(vlan
= first_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
2954 if (vlan
->nb_guest_devs
== 0 && vlan
->nb_host_devs
== 0)
2956 if (vlan
->nb_guest_devs
== 0)
2957 fprintf(stderr
, "Warning: vlan %d with no nics\n", vlan
->id
);
2958 if (vlan
->nb_host_devs
== 0)
2960 "Warning: vlan %d is not connected to host network\n",